<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../react18/react.development.js"></script>
    <script src="../react18/react-dom.development.js"></script>
    <script src="../react18/babel.min.js"></script>

</head>

<body>
    <button id="btn">修改vDOM,并重新渲染</button>
    <div id="app"></div>
    <script type="text/babel">
        const arr = [
            { id: "1", con: 'a' },
            { id: "2", con: 'b' },
            { id: "3", con: 'c' }
        ]
        const vDOM=(
            <ul>
                {
                  arr.map(item=>(<li key={item.id}>{item.con}<input type="text" /></li>))  
                }
            </ul>
        )
        const root = ReactDOM.createRoot(document.getElementById('app'));
        root.render(vDOM)


        const oBtn =document.getElementById('btn')
        let i = 0;
        oBtn.onclick=function(){
            arr.unshift({id:Date.now(),con:'d'+ i++});
            const vDOM=(
                <ul>
                    {
                        arr.map(item=>(<li key={item.id}>{item.con}<input type="text" /></li>))   
                    }
                </ul>
            )
            root.render(vDOM)
        }
    </script>
</body>

</html>